Diffraction has what affect on a wireless signal's propagation?

a. The signal is redirected into multiple directions.
b. The signal is split into secondary waves that continue in the direction in which they split.
c. The signal is returned back towards the source of the original signal.
d. The signal is completely absorbed by the diffracting material.


ANSWER: b

Computer Science & Information Technology

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a. It begins at the opening { of the class declaration and terminates at the closing }. b. It limits label scope to only the method in which it is declared. c. It begins at the identifier's declaration and ends at the terminating right brace (}). d. It is valid for one statement only.

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The default style of a selection is the ____ style.

a. Application b. Fixed c. Normal d. Defined

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Which of the following is a tool that can be used to search Internet software repositories for RPM packages that map to your system’s architecture, and automatically install or upgrade those packages on your system?

A. tar B. wget C. APT D. YUM

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Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology